Phenotypic and genotypic characterization of Cryptosporidium species and isolates

Recent outbreaks of cryptosporidiosis from contaminated water supplies have led to a need for the detection of Cryptosporidium oocysts from various hosts and contaminating sources. The presence of nonpathogenic species or strains of Cryptosporidium is important for diagnostic purposes as there is a...

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Bibliographic Details
Published in:Journal of industrial microbiology & biotechnology 2001-03, Vol.26 (3), p.95-106
Main Authors: CARRENO, R. A, POKORNY, N. J, LEE, H, TREVORS, J. T, DE GRANDIS, S. A
Format: Article
Language:English
Subjects:
Animals
Biological and medical sciences
Biotechnology
Cats
Cattle
Cryptosporidiosis
Cryptosporidiosis - parasitology
Cryptosporidium
Cryptosporidium - classification
Cryptosporidium - genetics
Cryptosporidium - isolation & purification
Cryptosporidium - physiology
Food contamination & poisoning
Fundamental and applied biological sciences. Psychology
Genetic diversity
Genotype
Genotype & phenotype
Guinea Pigs
Humans
Infections
Mice
Microbiology
Morphology
Oocysts
Parasites
Phenotype
Protozoa
Small intestine
Studies
Systematics
Systematics. Geographical distribution. Morphology. Cytology
Taxonomy
Water pollution
Water supply
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Summary:Recent outbreaks of cryptosporidiosis from contaminated water supplies have led to a need for the detection of Cryptosporidium oocysts from various hosts and contaminating sources. The presence of nonpathogenic species or strains of Cryptosporidium is important for diagnostic purposes as there is a potential for false- positive detection of pathogenic parasites. The present review focuses on phenotypic differences and recent advances in genotypic analyses of the genus Cryptosporidium with an emphasis on detecting various isolates and identifying differences in Cryptosporidium parvum and other species in this genus. The information currently available demonstrates important patterns in DNA sequences of Cryptosporidium, and our understanding of macro- and microevolutionary patterns has increased in recent years. However, current knowledge of Cryptosporidium genetic diversity is far from complete, and the large amount of both phenotypic and genotypic data has led to problems in our understanding of the systematics of this genus.
ISSN:1367-5435
1476-5535
DOI:10.1038/sj.jim.7000088